The 1st DCT to reach generation was the Easidrive automatic transmission released over the 1961 Hillman Minx mid-measurement car or truck. This was accompanied by many jap European tractors with the seventies (applying manual operation by using just one clutch pedal), then the Porsche 962 C racing car or truck https://griffinggeay.pointblog.net/the-fact-about-gearbox-auto-that-no-one-is-suggesting-77381549